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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: Header.html 5 2014-12-10 22:27:01Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.msrp.msg;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.util.Comparator;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.util.regex.Pattern;<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>/**<a name="line.13"></a>
<span class="sourceLineNo">014</span> * Generic MSRP header.<a name="line.14"></a>
<span class="sourceLineNo">015</span> *<a name="line.15"></a>
<span class="sourceLineNo">016</span> * &lt;p&gt;<a name="line.16"></a>
<span class="sourceLineNo">017</span> * Instances are immutable. When compared using {@link #equals equals()}, names and values are compared case-sensitively.<a name="line.17"></a>
<span class="sourceLineNo">018</span> * However in practice header names are compared case-insensitively; use {@link #SORT_BY_NAME} for these comparisons.<a name="line.18"></a>
<span class="sourceLineNo">019</span> * &lt;/p&gt;<a name="line.19"></a>
<span class="sourceLineNo">020</span> */<a name="line.20"></a>
<span class="sourceLineNo">021</span>public class Header {<a name="line.21"></a>
<span class="sourceLineNo">022</span><a name="line.22"></a>
<span class="sourceLineNo">023</span>    public static final Comparator&lt;Header&gt; SORT_BY_NAME = new Comparator&lt;Header&gt;() {<a name="line.23"></a>
<span class="sourceLineNo">024</span>        @Override<a name="line.24"></a>
<span class="sourceLineNo">025</span>        public int compare(Header header1, Header header2) {<a name="line.25"></a>
<span class="sourceLineNo">026</span>            return header1.getName().toLowerCase().compareTo(header2.getName().toLowerCase());<a name="line.26"></a>
<span class="sourceLineNo">027</span>        }<a name="line.27"></a>
<span class="sourceLineNo">028</span>    };<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>    private final String name;<a name="line.30"></a>
<span class="sourceLineNo">031</span>    private final String value;<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span>    /**<a name="line.33"></a>
<span class="sourceLineNo">034</span>     * Constructor.<a name="line.34"></a>
<span class="sourceLineNo">035</span>     *<a name="line.35"></a>
<span class="sourceLineNo">036</span>     * @param name header name<a name="line.36"></a>
<span class="sourceLineNo">037</span>     * @param value header value<a name="line.37"></a>
<span class="sourceLineNo">038</span>     * @throws IllegalArgumentException if either parameter is null<a name="line.38"></a>
<span class="sourceLineNo">039</span>     * @throws IllegalArgumentException if either parameter is invalid<a name="line.39"></a>
<span class="sourceLineNo">040</span>     */<a name="line.40"></a>
<span class="sourceLineNo">041</span>    public Header(String name, String value) {<a name="line.41"></a>
<span class="sourceLineNo">042</span>        if (name == null)<a name="line.42"></a>
<span class="sourceLineNo">043</span>            throw new IllegalArgumentException("null name");<a name="line.43"></a>
<span class="sourceLineNo">044</span>        if (!Pattern.compile(Util.HEADER_NAME_REGEX).matcher(name).matches())<a name="line.44"></a>
<span class="sourceLineNo">045</span>            throw new IllegalArgumentException("invalid header name `" + name + "'");<a name="line.45"></a>
<span class="sourceLineNo">046</span>        if (value == null)<a name="line.46"></a>
<span class="sourceLineNo">047</span>            throw new IllegalArgumentException("null value");<a name="line.47"></a>
<span class="sourceLineNo">048</span>        if (!Pattern.compile(Util.HEADER_VALUE_REGEX).matcher(value).matches())<a name="line.48"></a>
<span class="sourceLineNo">049</span>            throw new IllegalArgumentException("invalid header value `" + value + "'");<a name="line.49"></a>
<span class="sourceLineNo">050</span>        this.name = name;<a name="line.50"></a>
<span class="sourceLineNo">051</span>        this.value = value;<a name="line.51"></a>
<span class="sourceLineNo">052</span>    }<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span>    /**<a name="line.54"></a>
<span class="sourceLineNo">055</span>     * Get the header name.<a name="line.55"></a>
<span class="sourceLineNo">056</span>     */<a name="line.56"></a>
<span class="sourceLineNo">057</span>    public String getName() {<a name="line.57"></a>
<span class="sourceLineNo">058</span>        return this.name;<a name="line.58"></a>
<span class="sourceLineNo">059</span>    }<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span>    /**<a name="line.61"></a>
<span class="sourceLineNo">062</span>     * Get the header value.<a name="line.62"></a>
<span class="sourceLineNo">063</span>     */<a name="line.63"></a>
<span class="sourceLineNo">064</span>    public String getValue() {<a name="line.64"></a>
<span class="sourceLineNo">065</span>        return this.value;<a name="line.65"></a>
<span class="sourceLineNo">066</span>    }<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span>// Object<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span>    @Override<a name="line.70"></a>
<span class="sourceLineNo">071</span>    public String toString() {<a name="line.71"></a>
<span class="sourceLineNo">072</span>        return String.format("%s: %s", this.name, this.value);<a name="line.72"></a>
<span class="sourceLineNo">073</span>    }<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
<span class="sourceLineNo">075</span>    @Override<a name="line.75"></a>
<span class="sourceLineNo">076</span>    public boolean equals(Object obj) {<a name="line.76"></a>
<span class="sourceLineNo">077</span>        if (obj == this)<a name="line.77"></a>
<span class="sourceLineNo">078</span>            return true;<a name="line.78"></a>
<span class="sourceLineNo">079</span>        if (obj == null || obj.getClass() != this.getClass())<a name="line.79"></a>
<span class="sourceLineNo">080</span>            return false;<a name="line.80"></a>
<span class="sourceLineNo">081</span>        final Header that = (Header)obj;<a name="line.81"></a>
<span class="sourceLineNo">082</span>        return this.name.equals(that) &amp;&amp; this.value.equals(value);<a name="line.82"></a>
<span class="sourceLineNo">083</span>    }<a name="line.83"></a>
<span class="sourceLineNo">084</span><a name="line.84"></a>
<span class="sourceLineNo">085</span>    @Override<a name="line.85"></a>
<span class="sourceLineNo">086</span>    public int hashCode() {<a name="line.86"></a>
<span class="sourceLineNo">087</span>        return this.name.hashCode() ^ this.value.hashCode();<a name="line.87"></a>
<span class="sourceLineNo">088</span>    }<a name="line.88"></a>
<span class="sourceLineNo">089</span>}<a name="line.89"></a>
<span class="sourceLineNo">090</span><a name="line.90"></a>




























































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